EP 3288223 A1 20180228 - SECURITY SYSTEM AND COMMUNICATION CONTROL METHOD
Title (en)
SECURITY SYSTEM AND COMMUNICATION CONTROL METHOD
Title (de)
SICHERHEITSSYSTEM UND KOMMUNIKATIONSSTEUERUNGSVERFAHREN
Title (fr)
SYSTÈME DE SÉCURITÉ ET PROCÉDÉ DE COMMANDE DE COMMUNICATIONS
Publication
Application
Priority
- US 201514831077 A 20150820
- JP 2016074219 W 20160819
Abstract (en)
This security system is provided with: a first gateway device configured to be connected to an external network; a second gateway device configured to be connected to an internal network and to be connected to the first gateway device; and a bidirectional communication line which connects the first gateway device and the second gateway device in such a way as to allow bidirectional communication. The security system is configured in such a way that: if inbound transmission data conform to a specific protocol, a first proxy unit of the first gateway device receives specific protocol communication information, conveyed by means of the inbound transmission data, and then transmits the specific protocol communication information to the second gateway device by means of the bidirectional communication line; and upon receipt of the specific protocol communication information from the first proxy unit by way of the bidirectional communication line, a second proxy unit of the second gateway device acquires a communication destination address in the internal network, from the specific protocol communication information, and transmits the specific protocol communication information to the destination address.
IPC 8 full level
H04L 12/66 (2006.01)
CPC (source: EP KR US)
H04L 63/0227 (2013.01 - EP KR US); H04L 63/0281 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3288223 A1 20180228; EP 3288223 A4 20180530; CN 107852359 A 20180327; CN 107852359 B 20201023; JP 6518771 B2 20190522; JP WO2017030186 A1 20180308; KR 102075228 B1 20200207; KR 20180011246 A 20180131; US 10021072 B2 20180710; US 2017054687 A1 20170223; WO 2017030186 A1 20170223
DOCDB simple family (application)
EP 16837175 A 20160819; CN 201680043867 A 20160819; JP 2016074219 W 20160819; JP 2017535570 A 20160819; KR 20177036961 A 20160819; US 201514831077 A 20150820